> Source page: https://iwkey.com/en/models/ (Markdown version of this page)

MODEL MARKET

# Frontier models worldwide, pure and authentic

This page shows a selection of available models; the full list is GET /v1/models. Cache price applies to prompt-cache hits.

Prices are a snapshot taken at publish time, generated 2026-10-22 17:05 UTC. Available models are as returned by GET /v1/models; prices are as shown in the console.

### Anthropic

Pay as you go · Text models · CNY rate 7:1

| Model | Tier | Discount | Input /1M | Output /1M | Cache /1M | Cache write | Context window | Max output | Long context |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| `claude-fable-5-1` | Value | 75% off | $2.50 | $12.50 | $0.0625 | — | 1M | 128K | — |
| `claude-opus-5-5` | Value | 75% off | $1.00 | $5.00 | $0.05 | — | 1M | 128K | — |
| `claude-sonnet-5-5` | Value | 75% off | $0.50 | $2.50 | $0.05 | — | 1M | 128K | — |
| `claude-haiku-5-5` | Value | 75% off | $0.125 | $0.625 | $0.0125 | — | 1M | 128K | — |

| ID | Input modalities | Output modalities | Capabilities | Knowledge cutoff | Tags |
| --- | --- | --- | --- | --- | --- |
| `claude-fable-5-1` | text + image + PDF | text | reasoning · vision · tool use | 2026-06 | Long Context · Reasoning |
| `claude-opus-5-5` | text + image + PDF | text | reasoning · vision · tool use | 2026-06 | Flagship · Reasoning |
| `claude-sonnet-5-5` | text + image + PDF | text | reasoning · vision · tool use | 2026-01 | Cost-effective · Reasoning |
| `claude-haiku-5-5` | text + image + PDF | text | reasoning · vision · tool use | 2026-06 | Cost-effective · Fast Response |

### OpenAI

Pay as you go · Text models (85% off) · Per image · Image models · CNY rate 7:1

| Model | Tier | Discount | Input /1M | Output /1M | Cache /1M | Cache write | Context window | Max output | Long context |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| `gpt-6.1-sol` | Value | 85% off | $0.30 | $1.50 | $0.015 | — | 1.05M | 128K | — |
| `gpt-6-astra` | Value | 85% off | $1.50 | $7.50 | $0.15 | $1.875 | 1.05M | 128K | > 272K: input $3.00 · output $11.25 · cache $0.30 · Cache write $3.75 |
| `gpt-6-sol` | Value | 85% off | $0.30 | $1.50 | $0.03 | $0.375 | 1.05M | 128K | > 272K: input $0.60 · output $2.25 · cache $0.06 · Cache write $0.75 |
| `gpt-6-luna` | Value | 85% off | $0.015 | $0.075 | <$0.01 | $0.0187 | 1.05M | 128K | > 272K: input $0.03 · output $0.1125 · cache <$0.01 · Cache write $0.0375 |

Requests over the token threshold are billed at this rate for all tokens

| Model | Tier | Per image | Endpoint |
| --- | --- | --- | --- |
| `gpt-image-2.5-sunburst` | Value | $0.0243 | POST /v1/images/generations (OpenAI-compatible image generation) |

Billed per generated image; see Tiers on sale below for unit price

| ID | Input modalities | Output modalities | Capabilities | Knowledge cutoff | Tags |
| --- | --- | --- | --- | --- | --- |
| `gpt-6.1-sol` | text + image + PDF | text | reasoning · vision · tool use | 2026-04 | Daily Driver · Reasoning |
| `gpt-6-astra` | text + image + PDF | text | reasoning · vision · tool use | 2026-04 | Flagship · Reasoning |
| `gpt-6-sol` | text + image + PDF | text | reasoning · vision · tool use | 2026-04 | Fast Response · Tool Calling |
| `gpt-6-luna` | text + image + PDF | text | reasoning · vision · tool use | 2026-05 | Ultra-low Latency · Tool Calling |
| `gpt-image-2.5-sunburst` | text + image | image | image generation | — | Cost-effective · Fast Response |

### Google

Pay as you go · Text models · Per image · Image models · CNY rate 7:1

| Model | Tier | Discount | Input /1M | Output /1M | Cache /1M | Cache write | Context window | Max output | Long context |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| `gemini-4-argon` | Value | 75% off | $0.50 | $2.50 | $0.025 | — | 1M | 65.536K | — |

| Model | Tier | Per image | Endpoint |
| --- | --- | --- | --- |
| `gemini-3.1-flash-image` | Value | $0.0271 | POST /v1beta/models/gemini-3.1-flash-image:generateContent (Gemini-native), or POST /v1/chat/completions (the image is returned in the reply content); this model is not served on /v1/images/generations |

Billed per generated image; see Tiers on sale below for unit price

| ID | Input modalities | Output modalities | Capabilities | Knowledge cutoff | Tags |
| --- | --- | --- | --- | --- | --- |
| `gemini-4-argon` | text + image + audio + video + PDF | text | reasoning · vision · tool use | 2026-03 | Flagship · Reasoning |
| `gemini-3.1-flash-image` | text + image | image | image generation | — | Cost-effective · Fast Response |

### ByteDance (Doubao)

Per task · async flow · Video generation

| Model | Tier | Billing | Estimate | Resolutions | Duration |
| --- | --- | --- | --- | --- | --- |
| `doubao-seedance-2.5` | Standard | Per task (duration × resolution) | Live estimate (shown before submit) | 480p / 720p / 1080p | 4–30s · auto duration available |
| `doubao-seedance-2.0` | Standard | Per task (duration × resolution) | Live estimate (shown before submit) | 480p / 720p / 1080p / 4k | 4–15s · auto duration available |
| `doubao-seedance-2.0-fast` | Standard | Per task (duration × resolution) | Live estimate (shown before submit) | 480p / 720p | 4–15s · auto duration available |

Async task: submit → poll → download

| ID | Input modalities | Output modalities | Capabilities | Knowledge cutoff | Tags |
| --- | --- | --- | --- | --- | --- |
| `doubao-seedance-2.5` | text + image + video + audio | video | video generation | — | Video Generation · Extended Duration · Async Task · Audio Driven |
| `doubao-seedance-2.0` | text + image + video + audio | video | video generation | — | Video Generation · Async Task · 4K · Multimodal Reference |
| `doubao-seedance-2.0-fast` | text + image + video + audio | video | video generation | — | Video Generation · Ultra Fast · Async Task |

### MiniMax

Per task · async flow · Video generation

| Model | Tier | Billing | Estimate | Resolutions | Duration |
| --- | --- | --- | --- | --- | --- |
| `MiniMax-H3` | Standard | Per task (duration × resolution) | Live estimate (shown before submit) | 768p / 2k | 4–15s |

Async task: submit → poll → download

| ID | Input modalities | Output modalities | Capabilities | Knowledge cutoff | Tags |
| --- | --- | --- | --- | --- | --- |
| `MiniMax-H3` | text + image + video + audio | video | video generation | — | Video Generation · Async Task · 2K |

Prices reflect the standard group; top-ups and team groups follow the console. Model IDs go straight into the `model` field.

[Docs →](https://iwkey.com/en/docs/)